/****************************************************************************
 * Copyright (c) 20047 Composent, Inc. and others.
 *
 * This program and the accompanying materials are made
 * available under the terms of the Eclipse Public License 2.0
 * which is available at https://www.eclipse.org/legal/epl-2.0/
 *
 * Contributors:
 *    Composent, Inc. - initial API and implementation
 *
 * SPDX-License-Identifier: EPL-2.0
 *****************************************************************************/

package org.eclipse.ecf.presence.collab.ui.url;

import java.net.URL;
import java.util.Hashtable;

import org.eclipse.ecf.core.identity.ID;
import org.eclipse.ecf.core.util.ECFException;
import org.eclipse.ecf.datashare.IChannelContainerAdapter;
import org.eclipse.ecf.internal.presence.collab.ui.Messages;
import org.eclipse.ecf.presence.collab.ui.AbstractCollabShare;
import org.eclipse.jface.dialogs.InputDialog;
import org.eclipse.jface.dialogs.MessageDialog;
import org.eclipse.jface.window.Window;
import org.eclipse.osgi.util.NLS;
import org.eclipse.swt.widgets.Display;
import org.eclipse.ui.PlatformUI;
import org.eclipse.ui.browser.IWebBrowser;
import org.eclipse.ui.browser.IWorkbenchBrowserSupport;

/**
 * Send/receive requests to display an URL in the internal web browser.
 */
public class URLShare extends AbstractCollabShare {

	private static final Hashtable urlsharechannels = new Hashtable();

	public static URLShare getURLShare(ID containerID) {
		return (URLShare) urlsharechannels.get(containerID);
	}

	public static URLShare addURLShare(ID containerID, IChannelContainerAdapter channelAdapter) throws ECFException {
		return (URLShare) urlsharechannels.put(containerID, new URLShare(channelAdapter));
	}

	public static URLShare removeURLShare(ID containerID) {
		return (URLShare) urlsharechannels.remove(containerID);
	}

	public URLShare(IChannelContainerAdapter adapter) throws ECFException {
		super(adapter);
	}

	private void showURL(final String user, final String url) {
		Display.getDefault().asyncExec(new Runnable() {
			public void run() {

				if (MessageDialog.openQuestion(null, Messages.URLShare_RECEIVED_URL_TITLE, NLS.bind(Messages.URLShare_RECEIVED_URL_MESSAGE, user, url))) {
					final IWorkbenchBrowserSupport support = PlatformUI.getWorkbench().getBrowserSupport();
					IWebBrowser browser;
					try {
						browser = support.createBrowser(null);
						browser.openURL(new URL(url));
					} catch (final Exception e) {
						logError(Messages.URLShare_EXCEPTION_LOG_BROWSER, e);
					}
				}
			}
		});
	}

	public void sendURL(final String senderuser, final ID toID, final String theURL) {
		try {
			sendMessage(toID, serialize(new Object[] {senderuser, theURL}));
		} catch (final ECFException e) {
			logError(e.getStatus());
		} catch (final Exception e) {
			logError(Messages.Share_EXCEPTION_LOG_SEND, e);
		}
	}

	public void showDialogAndSendURL(final String senderuser, final ID toID) {
		Display.getDefault().asyncExec(new Runnable() {
			public void run() {
				final InputDialog input = new InputDialog(null, Messages.URLShare_INPUT_URL_DIALOG_TITLE, Messages.URLShare_ENTER_URL_DIALOG_TEXT, Messages.URLShare_ENTER_URL_DEFAULT_URL, null);
				input.setBlockOnOpen(true);
				final int result = input.open();
				if (result == Window.OK) {
					final String send = input.getValue();
					if (send != null && !send.equals("")) { //$NON-NLS-1$
						try {
							sendMessage(toID, serialize(new Object[] {senderuser, send}));
						} catch (final ECFException e) {
							logError(e.getStatus());
						} catch (final Exception e) {
							logError(Messages.Share_EXCEPTION_LOG_SEND, e);
						}
					}
				}
			}
		});
	}

	/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.ecf.datashare.AbstractShare#handleChannelData(byte[])
	 */
	protected void handleMessage(ID fromContainerID, byte[] data) {
		try {
			final Object[] msg = (Object[]) deserialize(data);
			showURL((String) msg[0], (String) msg[1]);
		} catch (final Exception e) {
			logError(Messages.Share_EXCEPTION_LOG_MESSAGE, e);
		}
	}

}
